Uncover the Secrets of Atoms
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Questions and Answers

Which particle was discovered by Sir J.J. Thomson?

  • Electron (correct)
  • Proton
  • Neutron
  • None of the above

    • Who discovered the nucleus?

  • Chadwick
  • Goldstein
  • Rutherford (correct)
  • Sir J.J. Thomson

    • What is the charge of a proton?

  • Negative
  • Positive (correct)
  • Neutral
  • None of the above

    • What is the charge of an electron?

    <p>Negative</p> Signup and view all the answers

    Which particle has the least mass?

    <p>Electron</p> Signup and view all the answers

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